Fire Leak Detection Perth

Leaks on fire mains reduce pressure and compromise safety. Our WA-licensed technicians locate losses in hydrants, hose reels and sprinkler lines using non-destructive methods, then provide a make-safe plan to restore performance and compliance across Perth.

Rating + “24/7 | WA-licensed | Family-owned

Why Fire Leak
Detection Matters

Undetected losses can leave your property under-protected in an emergency. Early detection:

Our Fire Leak Detection Process

We use targeted, non-destructive testing to pinpoint faults quickly and minimise disruption:

1. Pressure &
isolation testing

— narrow down leak zones

2. Acoustic listening

— identify escape noise in buried lines

3. Line location & mapping

— trace pipe runs without excavation

4. Dye testing (as applicable)

— confirm ingress points

5. Sectional verification

— confirm exact repair point before works

Why Choose
Expand Plumbing & Gas?

WA-licensed & fully insured technicians

24/7 emergency availability

Over 25 years’ experience

Non-destructive methods first

Transparent pricing, no hidden fees

5-Star Google reviews

      EXCELLENT  
   Based on 181 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Wray Ave 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thanks Scott for an excellent job installing my new gas stove-top and mixer tap. Really fast response and service. Much appreciated. Anton
  
 
      Posted on Google  
   
   Lina Platts 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great service with very friendly service men. Thanks
  
 
      Posted on Google  
   
   Indrawati Sunarja 
 
 
 
 Trustindex verifies that the original source of the review is Google. Had issue with having cold shower, was thinking of replacing the water tank (5 years old). Called Expand Plumbing (based on good reviews they have) and they sent Ben to our place within hours. He then simply clean the valve and we got hot water again with very reasonable fee (no call out fee). Ben was fantastic and explained to us the problems clearly. Highly recommended!!
  
 
      Posted on Google  
   
   Delta Slug 
 
 
 
 Trustindex verifies that the original source of the review is Google. Outstanding and prompt service. Staff are friendly and knowledgeable. Recommend unreservedly. Glenn BullCreek
  
 
      Posted on Google  
   
   HS 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thankyou Alex for the quick response to send out the plumbers. Very efficient and nice people to deal with. Highly recommended
  
 
      Posted on Google  
   
   Nina Ahmad 
 
 
 
 Trustindex verifies that the original source of the review is Google. This is the second time using Expand plumbing.  Both times the work was done promptly and professionally. Ben was very courteous and explained the fault and how it was to be fixed. Thank you for a great job and I will recommend you to others.
  
 
      Posted on Google  
   
   A Triggered Boi 
 
 
 
 Trustindex verifies that the original source of the review is Google. My gas System needed certification, and James was all over it. He double checked everything and made sure it was up to spec Service was excellent, on time and quick. Would absolutely recommend Plumbdog and their services
  
 
      Posted on Google  
   
   nicole schnitzler 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thank you Alec and Sarah! I know diddly squat about water pipes, so when our front water meter was going off like a frog in a sock, and it was almost 5pm - needless to say, I got a bit panicked. Sarah sent me the easy-to-navigate booking form, and instantly, Alec was on his way. Alec figured it was a water corp issue and he very accommodatingly called them for me and explained the issue. The nicest, fastest and professional service I have had in a long time. Expand to the rescue!
  
 
      Posted on Google  
   
   Shayne Smith 
 
 
 
 Trustindex verifies that the original source of the review is Google. I recently had a fantastic experience with Expand Group Plumbing! They sent out a couple of young guys who were not only well-mannered but also efficient and professional. They got the job done quickly and made sure to clean up thoroughly before leaving. I couldn't be happier with the service I received. Highly recommend Expand Group Plumbing for anyone in need of reliable and quality plumbing services!
  
 
      Posted on Google  
   
   Claud Lin 
 
 
 
 Trustindex verifies that the original source of the review is Google. Ben and Ryan helped fix a leak in my kitchen caused by cracks in the drain. We also discovered that the drain was blocked, and they assisted with clearing the blockage. Their service was very professional. Thank you very much!

Advanced Leak
Detection Technology

To deliver precise results with minimal impact, we use:

Residential Advanced Leak Detection Perth

From townhouse hydrants to apartment hose reels, we diagnose losses, provide photo-led reports and coordinate repairs with minimal disruption.

Commercial & Industrial Fire Networks

Warehouses, retail centres, hospitality and education facilities — accurate detection keeps systems online and audits straightforward. After-hours testing by arrangement.

Book Fire Leak
Detection in Perth –
Available 24/7

Don’t let a small leak compromise your fire protection. We’ll isolate, verify and plan the repair — fast.

Fire Leak Detection FAQs

What parts of a fire system can leak?

Fire mains, hydrant branches, sprinkler lines, hose reel feeds, valves and joints — especially on older pipework or where ground movement occurs.

Can you find leaks without digging up the whole line?

Yes. We combine isolation, acoustic listening and line location to target a small repair area and avoid unnecessary excavation.

Do you provide reports for facility managers and insurers?

Yes — photos, findings and recommended next steps to support compliance and maintenance plans.

Do you offer after-hours testing?

Yes. We can schedule around trading hours to minimise disruption.

How much does fire leak detection cost?

Whilst costs can vary depending on the complexity, location of the leak and size of the network, we’ll always provide a clear plan of action once we’ve inspected the site. Modern leak detection methods are non-invasive, utilising technologies like thermal imaging and acoustic sensors, which can also save on repair costs.